Biological and Synthetic Polymer Networks

ISBN-13: 9789401070973 / Angielski / Miękka / 2011 / 548 str.

O. Kramer

Opis

Biological and Synthetic Polymer Networks contains 36 papers selected from the papers presented at NETWORKS 86, the 8th Polymer Networks Group Meeting. NETWORKS 86 was held in Elsinore, Denmark, on 31 August 5 September 1986. A total of nine invited main lectures and 68 contributed papers were presented at the meeting. A wide range of important biological and synthetic materials consist of three-dimensional polymer networks. The properties range from very stiff structural materials to extremely flexible rubbery materials and gels. Most polymer networks are permanent networks held together by covalent bonds. Such networks are insoluble but they may swell considerably in good solvents. Polymer networks held together by ionic bonds, hydrogen bonds or so-called entanglements are of a more temporary nature. At long times they exhibit a tendency to flow, and they are soluble in good solvents. The paper by Professor Walther Burchard and his co-workers, 'Covalent, Thermoreversible and Entangled Networks: An Attempt at Comparison', serves as a general introduction to polymer networks. The book contains both theoretical and experimental papers on the formation, characterisation and properties of polymer networks. Two topics were given special sessions at the meeting, namely Biological Networks and Swelling of Polymer Networks.

Spis treści

Introductory Paper.- 1. Covalent, Thermoreversible and Entangled Networks: An Attempt at Comparison.- Section 1: Biological Networks.- 2. Structure and Rheology of Fibrin Networks.- 3. Non-Gaussian Elastic Properties in Biopolymer Networks.- 4. Fibrinogen and Fibrin Studied by Small-angle Neutron Scattering.- 5. The Effect of Gelation on Water—Protein Interaction.- 6. Structure Determination of Different Casein Components.- 7. Galactomannan—Borate Systems: A Complexation Study.- 8. Formation of Thermally Reversible Networks from Starch Polysaccharides.- 9. Insect Cuticle as a Covalently Crosslinked Protein Network.- Section 2: Formation of Networks.- 10. Intramolecular Reaction and Network Formation and Properties.- 11. The Physics of Temporary Polymer Networks: A Comparison of Theory and Experiment.- 12. Kinetics of Ring Formation in Polymerization Reactions.- 13. Calculation of Average Network Parameters Using Combined Kinetic and Markovian Analysis.- 14. Effect of Dilution during Network Formation on Cyclization and Topological Constraints in Polyurethane Networks.- 15. 13C-NMR Analysis of Crosslinking Sites in Branched Polyesters.- 16. Fluoroelastomers: Reaction Products in Early Stages of Network Formation.- 17. A Model for Inhomogeneous Network Formation by Chainreaction Polymerization.- 18. Sol—Gel Transition Induced by Friedel—Crafts Crosslinking of Polystyrene Solutions.- 19. Physico-chemistry of the Hydrolysed Polyacrylamide—Chromium III Interaction in Relation to Rheological Properties.- 20. Cured Epoxy Resins: Measurements in Dilute and Semidilute Solution.- 21. Networks as the Basis of Pre-thickening SMC.- 22. Special Features of Network Build-up in Curing of Polyepoxides Based on N,N-Diglycidylaniline Derivatives.- 23. The Influence of Vitrification on the Formation of Densely Crosslinked Networks Using Photopolymerization.- Section 3: Characterisation of Polymer Networks.- 24. Orientational Behaviour of Free Polymer Chains Dissolved in a Strained Network: A Deuterium Magnetic Resonance Investigation.- 25. Polymer Coil Relaxation in Uniaxially Elongated Poly(ethylethylene) Observed by Small-angle Neutron Scattering.- 26. The Scattering of Light by Swollen Networks.- Section 4: Swelling of Polymer Networks.- 27. Swelling of Polymer Networks.- 28. Differential Swelling of Elastomers.- 29. Phase Transition in Swollen Gels. 10. Effect of the Positive Charge and its Position in the Side Chain on the Collapse and Mechanical Behaviour of Poly(acrylamide) Networks.- 30. Deswelling of Gels Induced by Unidirectional Compression.- 31. On the Temperature Dependence of Equilibrium Concentration of Slightly Crosslinked Gels.- 32. NMR Approach to the Swelling Process of PDMS Networks and Silica-filled Siloxanes,.- 33. Investigation on Polystyrene Networks Containing Pendent Poly(ethylene oxide) Chains.- Section 5: Rubber Elasticity.- 34. Anisotropy of Rubber Networks Crosslinked in States of Strain.- 35. High-vinyl Polybutadiene Crosslinked in the Strained State to Different Degrees of Crosslinking.- 36. A Simple Model of Random Tetrafunctional Networks with Defects.- Contributing Author Index.